code: def add_call(self):
      self.call += 1
  
file_path: VisualDL/visualdl/component/profiler/parser/operator_parser.py
imports: import collections
  from .kernel_parser import DeviceItem
  from .utils import wrap_tree
label_desc: Use image node_id 8 for calling the OperatorItem obj's underlying member method code with example usage: obj.add_call() without return types